splatter

Short definition from Wiktionary

Noun

1. 1
   An uneven shape or mess created by something dispersing on impact.
2. 2
   A genre of gory horror.
3. 3
   Spurious emissions resulting from an abrupt change in a transmitted radio signal.

Verb

1. 1
   To splash; to scatter; to land or strike in an uneven, distributed mess.
2. 2
   To cause (something) to splatter.
3. 3
   To spatter (something or somebody).